One-fourth
Same
Half
2 times
The core of an electromagnet is made of soft iron because soft iron has
The core of gravity of a sprinter during the race lies
The correct statement is
The cover of a solar cooker is made of glass because
The critical angle for a transport solid is 30°. Then its refractive index is
The critical angle of a glass slab increases with
The density of a gas is maximum at
The density of the liquid when heated
The density of water is 1 g/cc. This is strictly valid at
The device used for locating submerged objects under sea is.
